
// Copyright (c) 2023 Wang Baisheng <baisheng_wang@163.com>, Wang Shenghan. All Rights Reserved.

.text
.code64
1:
    mov $0x3f8, %dx
    mov $'B', %al
    out %al, %dx

    mov $1000, %rdi
    mov $0, %rax
    syscall

    jmp 1b
